Heating neck



FIG. 1 is a perspective view of a heating neck showing the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an enlarged view of the identified portion of FIG. 1.

The broken line shown in the drawings is included for the purpose of illustrating portions of the heating neck and forms no part of the claimed design. 

CLAIM The ornamental design for a heating neck, as shown and described. 